Roof

You can characterize the building roof using a catalogue of well known roof types. Additional roof shapes may be introduced later (S3DB_Proposals), including advanced approaches for manual modelling (e.g., ProposedRoofLines or parts of OSM-4D/Roof_table).

Additional Attributes

Presence or absence of walls in projected cantilever or slabs more than 5 feet.

building:soft_storey

yes / no

Soft storey commonly occurs in buildings in urban areas where ground floor is usually open for parking or shops for commercial purposes.

building:bay:x

number

Number of beams rigidly connected to columns on either side along E-W direction. For L-shaped, U-shaped and multi-projected buildings, only the number of bays of the projected wing is noted, ie. minimum number of bays along either direction.

building:bay:y

number

Number of beams rigidly connected to columns on either side along N-S direction.